We will determ what is the yacht, then will follow different types of liens in the Republic of Croatia. After that we will provide comparison with legal systems regarding mortgages on yachts. We will conclude this paper with the data representation of liens on yachts in the Republic of Croatia. The aim of this paper is to investigate and bring closer the concept of liens on yachts in the Republic of Croatia and to make a comparison with the legal systems of other countries in the area. All statistical data were collected in correspondence with the Ministry of the Sea, Transport and Infrastructure. At the moment Croatia experience a positive trend that shows us how yachts and boats that are entered in the Register are newer than in the previous decades, so their value is correspondingly higher. In accordance with the trend, boat registration system modernized and digitalized in a way that Croatia now has electronical enrolment of the ships. The research on the legal arrangement of lien rights leads to the conclusion that English law served as a model for Croatian law. In Italy and Greece, yacht liens are regulated in a similar way as in Croatia. As far as the USA is concerned, the roots of maritime law are tied to the arrangement in the Anglo-Saxon legal system, and in general liens on yachts in the USA are based on the same principles as in Croatia. It is interesting that the Turkish legislation stipulates that the creditor cannot take physical possession of the yacht, but only seek debt collection from the sale or other sources of income related to the yacht, which is a difference compared to Croatia.